Crowder



(No Model.)

' G. W. GROWDER.

WIRE GOILING MACHINE.

Nb. 527,144. Patented 001;. 9, 1894.

50657066565: 0 Ire/017,20 r: F 0. ocw

UNITED STATES PATENT OFFICE.

GEORGE WASHINGTON CROWDER, OFGOLDTHWAITE, TEXAS.-

WlRE-CO|L ING MACHINE.

SPECIFICATION forming part of Letters Iatent No. 527,144, dated October 9, 1894. Application filed June 23, 1894- Serial No.515,4=90. (No mad.)

To all whom it may concern:

Be it known that I, GEORGE, WASHINGTON OROWDER, a citizen of the United States, residing at Goldthwaite, in the county of Mills and State of Texas, have invented certain Improvements in Wire-Coiling Machines, of v which the following specification contains a full, clear, and exact description, reference being had to the accompanying drawings, forming part thereof, and in which- Figure 1 is a perspective of the machine arranged for arighthanded operator. Fig. 2 is a side elevation the machine arranged or adjusted fora left-handed operator; and Figs. 3 and 4: are details of the cutters.

The invention relates to that class of wire coiling machines shown in the patent to Wildermuth, No. 296,806, granted April 15, 1884.

The object of the invention is to render the patented machine capable of operation by left-handed as well as right-handed operators.

The invention consists of making'the mandrel shaft reversible so that its crank may be brought to either side of the machine to receive at its other end the interchangeable oppositely grooved sectional mandrels, also in providing the upper end of the post at opposite sides with stationary cutter blades and a single movable cutter adapted to be shifted for operation with either one of the said fixed cutters.

A, is the vertical hollow post in which is mounted the twisted bit 0, its operating nut.

c and connecting rods 01, pivotally connected at their lower ends to the foot lever E, which extends through the lower slotted end of the post and is pivoted to a bracket exterior to the post. The upper end of the bit'is provided with the grooved top plate a and pins b H, I, represent the former or spring compressor connected with the foot lever E, by

' rods i.

12' is passed through the same end of the shaft adjacent to the side of the post to prevent longitudinal movement of the shaft.

At the opposite side of the post the shaft is provided with the two-part mandrel B 61?, the two pins 6 and d thus holding the shaft against longitudinal movement in either direction. Two of these mandrels B are provided and they are just alike except that their spiral grooves proceed in opposite directions, and these mandrels operate exactly like those shown in the patent cited, and the mandrel end of the shaft is also notched just as in said patent and in patent to Wildermuth, No.

245,683, granted August 16, 1881.

G, G, are the two stationary cutters secured to opposite sides of theupper end of the post and projecting beyond that side of the post on which the former H I, is placed; the upper edges of these projecting portions being provided with notches '9.

G is the movable cutter the removable pivot bolt 9 of w'hichpasses through an aperture in one or the other of the fixed cutters just below their notches g, and the upper edge of the movable cutter is provided with a notch to register with the notches of the fixed cutter to which said movable cutter is pivoted. The free end of the movable cutter through which and theshaft is passed a pin" is connected with the foot lever E, by means as is also the crank. The conical mandrel will now be removed by withdrawing the pin d and the shaft B will be withdrawn to the left from its bearing in the post A, and inserted again therein with its ends reversed, or arranged oppositely to the position they occupy in-Fig. 1. The crank and pins b b are replaced and the other mandrel is applied to the shaft. The movable cutter will now be transferred from the left hand side of the post to the right hand side, and the machine will be ready for use as shown in Fig. 2 by a left-handed operator.

Having thus described my invention, what ter described, the combination with a post and its reversible mandrel shaft, of the 0ppositely grooved interchangeable mandrels,

substantially as herein described.

2. In a wire coiling machine of the character described, the combination with a post and its reversible mandrel shaft, removable crank, and pinsb b, of the oppositely grooved interchangeable mandrels, and a pin for removably securing them to the shaft, substantially as herein described.

3. In a wire coiling machine of the character described, the combination with a post, its reversible mandrel shaft, and the oppositely grooved interchangeable mandrels, of the fixed cutters at opposite sides of the upper end of the post, and a movable cutter adapted for operation with either one of the fixed cutters, and a foot lever connected with said movable cutter, substantially as herein described.

4. In a wire coiling machine of the character described, the combination with a post, its reversible mandrel shaft, and the oppositely grooved interchangeable mandrels, of the fixed cutters at opposite sides of the upper ends of the post and having notched upper edges and pivot apertures below the notches, the movable cutter having a notched upper edge, and a pivot to connect it removably with either one of the fixed cutters, a foot lever, and a connection between the foot lever and the movable cutter, substantially as herein described.

GEORGE WASHINGTON CROWDER.

Witnesses:

I. G. ABNEY, M. O. HUMPHRIES. 

